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Injector Size

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Old Jan 24, 2001 | 03:08 PM
  #1  
90Iroc's Avatar
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From: Greenwood, IN USA
Car: 1990 Iroc/Z
Engine: LB9 305 TPI
Transmission: Borg Warner 5 speed
Injector Size

Is it okay to use 19lb injectors on a 350? Should I just turn the pressure up if I use them? I have a 305, but I'm thinking of doing a swap. What should I do?
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Old Jan 24, 2001 | 03:33 PM
  #2  
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From: Eau Claire, WI US
Car: Two 1987 Iroc-Z Z28s
Engine: 5.7 TPI ZZ4 1.6 Roller Alum. Head
Axle/Gears: 3.73
That will work fine. The pros do that because smaller injectors with higher pressure gives a better spray pattern.

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Old Jan 24, 2001 | 07:05 PM
  #3  
406TPI's Avatar
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From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
You will be okay as long as your 350 is fairly mild. All you will need to do is play around with the fuel pressure. If you are finding that you must raise the pressure over 60lbs then you might want to think about getting bigger injectors because you are approaching the max duty cycle of that injector.
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Old Jan 24, 2001 | 09:38 PM
  #4  
90Iroc's Avatar
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From: Greenwood, IN USA
Car: 1990 Iroc/Z
Engine: LB9 305 TPI
Transmission: Borg Warner 5 speed
Great! Thanks. I want whatever I build to be reliable, so hopefully I won't be into the 60lb area. I'm hoping that I won't need to go over 52psi. Would that be alright? Basically, I'll be building a stock internal and (maybe vette headed, if not L98 headed) engine. What do you think?
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